from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An artificially produced radioactive element with atomic number 112 whose isotope has a mass number of 277 and a half-life of 280 milliseconds. Also called ununbium.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a radioactive transuranic element
Sorry, no etymologies found.